The directors of "Billy Joel: And So It Goes" recently opened up about the making of the new HBO documentary and provided an update on the legendary singer’s health.

Billy Joel says that music saved his life in the trailer for Billy Joel: And So It Goes. The two-part documentary features home videos and archival footage from his

“And So It Goes” — a five-hour tale from HBO — takes Joel’s fans on a wild ride from his very humble beginnings as a young man from Hicksville, New York, and examines how he became one of the most innovative people in his craft.